Stress is common, and potentially adverse, for individuals transitioning to college. The purpose of the present study was to describe and understand first year college students’ experiences of stress. Specifically, the goals of this study were twofold: (1) to describe the types of stressors experienced by students transitioning into college and (2) to understand the predictors of students’ experiences of the different forms of stressors. Ecological Momentary Assessments were collected over the course of the first semester of the participants’ (N = 194, 56% female) first semester of college. Stressors were coded into 8 categories: academic, global interpersonal (family, peer, other interpersonal), obligational, health, and finances. It was found that (aim 1) academic stressors were endorsed the most frequently, followed by global interpersonal stressors and obligational stressors. Results also showed that (aim 2) males reported more frequent academic stressors than females, and females reported more frequent interpersonal stressors than males. In addition, higher GPA was positively related to obligational stressors and family support was positively correlated with academic stress. These findings suggest a need for increased awareness of stressors that students within differing contexts experience in a university setting.